io2 MEMOIRS ON THE COLEOPTERA. 



long as wide, the tenth but slightly transverse, eleventh gradually acute, 

 fully as long as the two preceding; prothorax rather less than one-half 

 wider than long, parallel, with evenly and distinctly rounded sides, the 

 ante-scutellar impression very small, rounded and feeble; elytra ample, 

 slightly transverse, not quite parallel, at base very slightly wider, the 

 suture barely at all impressed at base and two-fifths longer, than the pro- 

 thorax; abdomen slightly narrower than the elytra, parallel, with nearly- 

 straight sides, the fourth and fifth tergites about equal. Length 2.7 mm. ; 

 width 0.78 mm. New York (Catskill Mts.). 



Allied to ducens and having similar male sexual characters, 

 except that the ear-like processes at the sides of the sixth tergite 

 are rather broader, more obtuse and more evenly concave ; but the 

 general coloration is paler, the elytra more albid, the body through- 

 out much stouter and the head much larger even relatively. 



Atheta reformata n. sp. Rather stout, moderately convex, sub- 

 alutaceous, the abdomen polished and with minute, close and very feeble 

 transversely wavy strigilation; punctures small, asperulate, moderately 

 close, minute and sparse on the abdomen; pubescence rather long and 

 coarse, pale; color piceous-black, the two basal tergites just visibly 

 pallescent at their apices, the elytra pale tawny-flavate, largely infumate 

 at the scutellum but not at all so postero-externally, the legs very pale; 

 head nearly as long as wide, fully three-fourths as wide as the prothorax, 

 the eyes large but only moderately convex, the tempora not quite so 

 prominent, two-thirds as long, parallel near the eyes, oblique basally, 

 the carinae fine and entire; antenna? dark, the basal joint alone pale, 

 second and third long and equal, each a little shorter than the first, 

 fourth about as long as wide, the remainder missing in the type; prothorax 

 relatively moderate in size, two-fifths wider than long, parallel, with 

 evenly and moderately rounded sides and rounded base, the median 

 line feebly impressed basally, joining a feeble transverse ante-scutellar 

 impression; elytra nearly parallel, only slightly transverse, almost a third 

 wider and one-half longer than the prothorax; abdomen rather broad, 

 slightly narrower than the elytra, parallel, with almost straight sides, 

 the fourth and fifth tergites equal, the sixth in the type rapidly narrowed 

 to the apex, which is feebly and subangularly sinuate. Length 2.6 mm.; 

 width 0.73 mm. Wisconsin (Bayfield), Wickham. 



Distinguishable very easily from the preceding by its much less 

 transverse head and relatively smaller prothorax, heavier though 

 shallower margins of the abdomen and the coloration. The 

 metasternal angle is shorter and more obtuse at apex. 



Atheta fenisex n. sp. Form, coloration and sculpture nearly as in 

 the preceding, except that the elytra are almost uniformly pale tawny- 

 flavate throughout, not darker in the scutellar region, the abdomen a little 

 paler at the extreme tip, with the micro-reticulation of the latter not quite 

 so close and less regularly in transverse strigilation, very feeble, the pu- 



